/**
    * Copyright 2010-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.common.util.spring.car;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Properties;
  
  import org.kuali.common.util.LocationUtils;
  import org.kuali.common.util.PropertyUtils;
  import org.kuali.common.util.Str;
  import org.kuali.common.util.property.Constants;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.core.env.Environment;
  import org.springframework.core.env.PropertiesPropertySource;
  import org.springframework.util.PropertyPlaceholderHelper;
  
  @Configuration
  public class CarPropertySourcesConfig {
  
  	PropertyPlaceholderHelper pph = Constants.DEFAULT_PROPERTY_PLACEHOLDER_HELPER;
  
  	@Autowired
  	Environment env;
  
  	@Bean
  	public String projectPropertiesLocation() {
  		String groupId = "org.kuali.common";
  		String artifactId = "kuali-car";
  
  		Properties properties = new Properties();
  		properties.setProperty("project.groupId.path", Str.getPath(groupId));
  		properties.setProperty("project.artifactId", artifactId);
  
  		return pph.replacePlaceholders(Constants.PROJECT_PROPERTIES_LOCATION, properties);
  	}
  
  	@Bean()
  	public PropertiesPropertySource pps() {
  		// Default to UTF-8 for project properties unless they've specified something else
  		String ppenc = env.getProperty("project.properties.encoding", "UTF-8");
  		String pploc = projectPropertiesLocation();
  		Properties projectProperties = PropertyUtils.load(pploc, ppenc);
  		String encoding = projectProperties.getProperty("project.encoding");
  		Properties global = PropertyUtils.getGlobalProperties();
  		Properties source = new Properties();
  		source.putAll(global);
  		List<String> locations = new ArrayList<String>();
  		locations.add("classpath:car.properties");
  		locations.add("classpath:${car.make}.properties");
  
  		for (String location : locations) {
  			String resolvedLocation = pph.replacePlaceholders(location, source);
  			boolean exists = LocationUtils.exists(resolvedLocation);
  			if (exists) {
  				source.putAll(PropertyUtils.load(resolvedLocation, encoding));
  				source.putAll(global);
  			}
  		}
  		String name = "springProperties";
  		return new PropertiesPropertySource(name, source);
  	}
  
  }